Oil fuel feed device



NOV. 13, 1934. J, mfi 1,980,743

OIL FUEL FEED DEVICE Filed Jan. 4, 1932 2 Sheets-Sheet l Nov. 13, 1934. B BBB NG 1,980,743

Patented Nov. 13, 1934 OIL FUEL FEED DEVICE Joseph Edward Blanding, New London, Conn., as-

Signor of one-half to Patrick B. McNamara,

Groton, Conn.

Application January 4, 1932, Serial No. 584,738

4 Claims.

The present invention has reference to a fuel treating and feeding device designed for use in connection with internal combustion engines, and aims to provide means whereby heavy oil 5 may be utilized as a fuel for the operation of the engine.

The primary object of the invention is to provide means for feeding heavy oil by low gravity to a mixing chamber, Where the oil is broken into a fine spray to be admitted to the engine cylinders supplying fuel to the cylinders.

An important object of the invention is to provide means for regulating the movements of the valves to vary the speed of operation of the engine.

Another object of the invention is to provide a device of this character wherein the upper portion of the device may be disconnected from the base thereof without interfering with the I 0 adjustments of the main valve thereof.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of constructionhereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure 1 is a vertical sectional view through the head of a cylinder, and illustrating a device constructed in accordance with the invention, as 35 mounted thereon.

" Figure 2 is a sectional View taken on line 2-2 of Figure 1.

Figure 3 is a sectional view taken on line 3-3 of Figure 1.

Figure 4 is a sectional view taken on line 44 of Figure 1.

Figure 5 is a sectional view taken on line 55 of Figure 1.

Figure 6 is an elevational view of the supporting bearing for the control lever of the device.

' Referring to the drawings in detail, the engine cylinder is indicated by the reference character 5, in which the piston 6 operates in the usual and well known manner.

The reference character 7 designates the removable head of the cylinder, and as shown is provided with a central opening in which the device forming the subject matter of this invention, is secured.

The device that controls the mixing and passage of fuel to the cylinder includes a main valve 8 carriedat the lower end of the valve stein 9,

the valve stem carrying the sleeve 10, which is formed with longitudinal peripheral grooves 11 that form passageways with the wall of the opening in which the valve stein operates. The main valve operates through a bore formed in the lower section 12 of the valve assembly, and as shown, is supplied with a spring 13 that bears against the head 14 arranged at one end of the valve stem 9, to normally seat the valve against the seat formed at the lower end of the lower section.

The lower section 12 is formed with shoulders to fit against shoulders formed within the chamber 15, which chamber is fitted in a central opening formed in the head 7, as clearly shown by Figure 1 of the drawings.

The chamber 15 is formed with a bottom wall 16, which is provided with a plurality of spaced openings 17, through which fuel passes on entering the cylinder.

A set screw indicated by the reference character 18 connects the chamber 15 and lower section of the valve assembly. c

As shown, the upper end of the lower section 12, is flush with the upper surface of the head 7., so that the member 19, may fit closely thereagainst, the member 19 being formed with openings to receive the bolts 20 that fit into thread- 35 ed openings formed in the head '7, thereby s'ecuring the lower section of the valve assembly in position, and at the same time affording means whereby the upper part of the valve assembly, to be hereinafter more fully described, may be removed without interfering with the main valve 8, or its adjustment.

The member 19 is provided with openings to receive the screws 21 that pass through openings formed in the intermediate section 22 of the valve assembly, the section 22 being formed with a lateral bore of a size to receive the lever 23, which is pivotally mounted within the bore.

The inner end of the lever 23 extends downwardly, where it contacts with the upper end of the valve stem 9, the lever 23 acting to unseat the valve 8, at predetermined intervals.

Connected with the outer end of the lever 23, is a push rod 24, which push rod is operated in the usual and well known manner.

Mounted on the intermediate section 22 of the valve assembly, is the head section of the valve assembly which is indicated by the reference character 25, the head section being provided with an internal valve opening to receive the .110

tapered end 26 of the valve 27, so that when the valve 27 is properly seated, the passage of oil will be prevented.

An internal opening indicated at 28, is formed in the head section, and is provided with internal threads to receive the threads of an oil feed pipe not shown, and which may be connected to the head section,- to deliver oil thereto.

Directly below the end of the valve out portion into which the threaded plug 29 extends, the wall of the cut out portion being threaded to accommodate the threads of the plug 20. The plug is provided with a beveled upper surface, defining a pointedportionagainst which the oil contacts, on passing from the head section of the valve assembly.

Openings 30 are formedin the plug Y29 and allow the oil to pass into the mixing chamber, indicated by the reference character 31. Air passes into the valve assembly, through the bore 32 where it mixes with the oil and passes into the mixing chamber with theoil, in the form of a spray. Thus it will be seen that due tothis construc tion, the plug 29 maybe readily adjusted, ac-

cording to the quality of'oil used with the device. A coiled spring indicated by the reference character 32' seats against the shoulder 33 of the valve 27, and normally acts to move the valve 2'? to its closed" position. At the upper end of the valve assembly, is an arm 34, that carries: the bearing member 35 into which bearing member the arm 36 extends, the arm 36 being connected with the valve at 37, so that movement of the arm 36 will act to raise the valve 27.

Ilhe reference character 38 designates a connecting link between the lever 23 and arm 36, so that as the lever 23 moves upwardly, an upward movement is imparted to -the valve 27, re leasing a quantity of oil into the mixing chamber. The movements of the valve, are controlled by the cam 39 mounted on the shaft 40 that is sup- 'ported by the member 35, the shaft 40 being "mounted at the lower-end of the arm 41-, which haspivotal connection with the rod 42;

Acoiled spring indicated at43 connects with *the arm 41, and acts to normallyurge the armto its inactive position.

From-the foregoing it will'be seen that when the cam is moved to engage the arm 36, the inner end of the arm will be held against downward movement, with the result that the opposite end of the arm 36, which carries the valve 27, moves upwardly unseating the valve. v

It is of course obvious "that a variation in the position of the cam 39, will act to cause the arm 27 is, a cut] including a lower section and a removable section, a valve mounted in each section and adapted'to control the passage of fuel through the body portion, and an adjustable plug between the valves, regulating the quantity of fuel passing from the upper section to the lower section.

2. A valve assembly comprising a body portion adapted to be positioned in the intake opening of an internal combustion engine, comprising a body portion including a lower section and an upper section, a valve in each section, a lever extending into the lower section and operating the valve in the lower section, and means for regulating the passage of fuel to the lower section.

3. A valve assembly comprising-a body portion adapted to be positioned in the intake opening of an internal combustion engine, said body portion having a central bore and including an upper movable section and a lower section, said upper movable section having an enlarged lower end forming a mixing chamber and formed with internal threads, a tapered threaded-plug adjustably held within the enlarged portion ofthe bore, closing the enlarged portion of the bore and regulating the size of the mixing chamber, said plug having a plurality of openings extending therethrough whereby fuel passes from the upper removable section to the lower section in fine jets, and means for regulating the passage of fuel through the body portion.

4; A valve assembly comprising a body portion adapted to be positioned in the intake opening of an internal combustion engine, said body portion having a central bore, an upper section forming a part of the bodyportion and having 2 a bore formed with an enlarged lower end providing a fuel mixing chamber, an adjustable plug positioned in the enlarged end and having a trolling the passage of fuel through the body portion.

JOSEPH EDWARD BLANDING. 

